John ruch and john ruch



UNITED STATES PATENT OFFICE.

JOHN RUCH AND JOHN RUGH, JR, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNORS TO THEMSELVES AND GEORGE RUCH, OF SAME PLACE.

MOTHPRQOF'ING HAIR, wooL, ate.

SPECIFICATION forming part of Letters Patent 1N0. 367,550, dated August 2, 1887.

Application filed April 15, 1885.

1o curled hair, wool, and like materials used in upholstering furniture, and this obj ect we attain by subjecting the mass of wool or hair to the action of smoke arising from the combustion of pitchy or resinous substances or other 1 hydrocarbons, the combustion of which produces large volumes of dense smoke.

Not only are the moths and their eggs or grubs which may be in the hair or wool (lestroyed by this treatment, but said hair or wool retains a permanent odor of smoke, and

is thereby rendered so offensive to the moths that they will not deposit their eggs upon it, nor will the worms or grubs oi" the motlrfly attack it.

It is advisable in some cases to subject the hair or wool to a pickling operation before smoking it. For'instance, hair in the rope may be boiled in a strong brine made by dis- Ilcnewed May "37, 1886. Again renewedDeeei11bet'2'7,1SSfi. Serial No. 222,738. (No specimens.)

said mode consisting in subjecting the hair or wool to the action of the smoke irom hydrocarbons of a character substantially asspocified.

2. The mode herein described of rendering curled hair, wool, or like material moth-proof, said mode eonsising in first pickling the hair or wool and then subjecting the same to the action of the smoke from hydrocarbons of a character substantially as specified.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

JOHN RUCH. JOHN RUCH, JR. Witnesses:

WILLIAM-F. DAVIS, HARRY SMITH. 

